Plaster composition for dissemination.



PATENT OFFICE.

FRANCIS C. BARTON, OF PHILADELPHIA, PENNSYLVANIA.

PLASTER COMPOSITION FOR DISSEMINA'IION.

No Drawing.

To all whom it may concern:

Be it known that I, FRANCIS O. BARTON, a citizen of the United States,residing in the city and county of Philadelphia, State of Pennsylvania,have invented a new and useful Plaster Composition for Dissemination, ofwhich the following is a specification.

My invention consists of a new and useful product, consisting of acomposition of matter for use in the dissemination of volatiledisinfectants, deodorizers, perfumes, and consists of a material whichforms a base or body and a controlling or regulating material or agentthat will retard the dissemination concentrated or located at thesurface thereof. The material forming the base or bodyis preferablycomposed of plaster of Paris and an arg'illaceous material, such asocher or argillaceous or calcareous earth, and the controlling orregulating material or agent is preferably dextrin or other amylaceousor mucilaginous element The materials forming the composition arecombined in suitable proportions and from this composition, a retaineris made, which serves to hold or absorb the volatile liquid or oil, andwhile permitting'dissemination thereof, causes the same to be evaporatedslowly, whereby on one charge of the liquid or oil, the evaporationextends over a very considerable period of time.

The purpose of my invention is to obtain 'a composition which can beused for the dissemination of volatile disinfectants, deodorizers andperfumes, which have come into very extensive use, and which materialwill have no action or injurious effect on the liquids with which it isused.

In forming my composition, I take, for

example, plaster of Paris, argillaceous ma-' terial and dextrin, orother suitable material, in suit-able proportions, preferably 32 partsof plaster of Paris, 7 parts of the argillaceous material, and 1 part ofthe dextrin. In carrying out the manufacture of the. container orretainer, these ingredients are thoroughly mixed together by anysuitable process, and a saturated solution of the mixture made in water.The material is then poured into a mold or other suitable container ofany desired form, and allowed to harden. During the process ofhardening, the dextrin or suitable material concentrates at the surfaceof the body, and the plaster of .Paris and argillaceous materialSpecification of Letters Patent.

Patented June 16, 1914.

Application filed June 6, 1912. Serial No. 701,983.

remain in the center or as a base, and the volatile liquid or oil, whilethe coating or dextrin or other suitable material produces a suitablefinish to the surface of the vessel, which, without destroying theabsorbent power of the body, serves to suitably close up or fill thepores of said body, in such a manner that, while permittingdissemination from its surface, it controls or regu lates thedissemination to prevent a too rapid evaporation of the liquid, so thatthe maximum duration of the time of evaporation of the liquid isobtained, without injurious effect upon the liquid.

It will be understood that by varying the proportion of the dextrin orother suitable material employed, the duration of evaporation of theliquid may be varied, that is to say, that, at the time of mixing thecomposition, by increasing or decreasing the amount of dextrin, the timeof evaporation may be lengthened or shortened, as desired, to permitslower or faster evaporation, as may be necessary, depending uponconditions By combining the argillaceous material, such as ocher oranother argillaceous earth, the plaster of Paris is held more uniformlyin suspension during the molding process, and the containers orretainers are of uniform porosity from the same mixture, thoughsuccessively cast or molded;

From the above, it will be understood that the proportions abovementioned may be varied according to requirements and conditions, butthat the plaster of Paris is always in greater proportion than theargillaceous material and the dextrin.

It will be further understood that the composition is suitable for usewith deodorizers, disinfectants, perfumes, essential and aromatic oils.

Having thus described my invention, what 'I claim as new and desire tosecure by Let ters Patent, is

1. As a new article of manufacture for use as a disseminator forvolatile disinfectant-s, deodorizers and perfumes, consisting of plasterof Paris, argillaceous material, and a substance that will retarddissemination concentrated at the surface of said disseminator.

the plaster of Paris being in greater proportion'than the argillaceousmaterial and tlie regulating agent. 1

2. As a new article of manufacture, a coinposition for use as adisseminator for volatile disinfectants, deodorizers and perfumes;consisting of plaster of Paris, 32 arts,- argillaceous' material, 7parts, and extrin, 1.

part.

3. Asa new article of manufacture, a retainer for disseminating volatiledisinfect ants, deodorizers and perfumes, composed of plaster of Parisand argillaceous material as a base, and a substance that will retard r}dissemination concentrated at tlie surface of I an absorbent materia asa base, and a substance that will retard dissemination concentrated atthe surface of said base.

} FRANCIS Q-BA'RTON.

Witnesses: I

G. HERBERT JENKINS, J I. MOLEAN.

